Severe storms eyeing the Chicago area Tuesday have the potential to produce supercells, considered to be one of the most powerful types of storm. But what exactly are they and what makes them so ...

Add Yahoo as a preferred source to see more of our stories on Google. On Tuesday, a powerful supercell thunderstorm tore through Kankakee, Ill,, producing a deadly EF3 tornado with winds estimated ...

(CNN) — Supercell thunderstorms are dangerous severe storms that unleash destructive hail, roaring winds and powerful tornadoes. They are responsible for nearly all of the United States’ most violent ...

For millions of Aussies it’s been a week of extreme weather, with wild storms, damaging winds and sweltering temperatures sweeping over southern and southeastern Australia. And as we edge closer to ...

A meteorologist at Northern Illinois University explains how hailstorms form and whether Chicagoans should expect more giant ...

Several damaging tornadoes and grapefruit-size hail struck Illinois and Indiana late Tuesday amid a widespread severe-weather ...

Intense severe storms will threaten nearly 50 million people beginning Thursday afternoon across parts of the Midwest and ...